* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

:root {
    --black: #000000;
    --white: #ffffff;
    --gray-50: #f9f9f9;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-600: #525252;
    --gray-800: #262626;
    --gray-900: #171717;
    --dark-gray: #1a1a1a;
    --medium-gray: #2a2a2a;
    --light-gray: #a0a0a0;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--black);
    color: var(--white);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: radial-gradient(ellipse at top, #1a1a1a 0%, #000000 60%);
}

::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--black);
}

::-webkit-scrollbar-thumb {
    background: var(--white);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: #f1f1f1;
}

* {
    cursor: none !important;
}

.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--black);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.loader.hidden {
    opacity: 0;
    pointer-events: none;
}

.loader-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--medium-gray);
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 64px;
    background-color: transparent;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: fixed;
    top: 0;
    width: 100vw;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

header.scrolled {
    background-color: rgba(0, 0, 0, 0.9);
    border-bottom-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.logo {
    font-size: 28px;
    font-weight: 800;
    color: var(--white);
    letter-spacing: -1.5px;
    background: linear-gradient(135deg, #ffffff 0%, #a0a0a0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s infinite;
    transition: transform 0.3s ease;
    text-decoration: none;
}

.logo:hover {
    transform: scale(1.05);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 24px;
}

.space {
    color: var(--black);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
    background-color: #d0d0d0;
    padding: 8px 16px;
    border-radius: 50px;
    display: inline-block;
}

.space:hover,
.space.active {
    transform: scale(1.05);
    background-color: #ffffff;
    transition: all 0.3s ease;
}

@keyframes shimmer {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.language-switcher {
    display: flex;
    gap: 8px;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 4px;
    border-radius: 50px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.lang-btn {
    padding: 8px 16px;
    background-color: transparent;
    border: none;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.lang-btn:not(.active) {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
}

.lang-btn.active {
    background: linear-gradient(135deg, #ffffff 0%, #e0e0e0 100%);
    color: var(--black);
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.3);
}

.cursor {
    position: fixed;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.8);
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease, background-color 0.3s ease;
    mix-blend-mode: difference;
}

.cursor.hover {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.6);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.main-about {
    padding-top: 120px;
}

.hero-section {
    padding: 120px 40px;
    height: 100vh;
    text-align: center;
    background: none;
    position: relative;
    overflow: hidden;
    
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    animation: fadeIn 0.8s ease;
}

.hero-section h1 {
    font-size: 56px;
    font-weight: 900;
    background: linear-gradient(135deg, #ffffff 0%, #808080 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 24px;
    letter-spacing: -2px;
    line-height: 1.2;
}

.hero-section p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
    font-weight: 300;
}

/* Services Section - Grid Layout */
.services-section {
    padding: 100px 40px;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header h2 {
    font-size: 56px;
    font-weight: 900;
    background: linear-gradient(135deg, #ffffff 0%, #808080 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    letter-spacing: -2px;
}

.header-underline {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, transparent, #ffffff, transparent);
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.service-card {
    padding: 48px 36px;
    text-align: center;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 24px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--white), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.service-card:hover::before {
    transform: translateX(100%);
}

.service-card:hover {
    transform: translateY(-16px) scale(1.03);
    box-shadow: 0 32px 80px rgba(0, 0, 0, 0.8);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.04) 100%);
    border-color: rgba(255, 255, 255, 0.2);
}

.service-icon {
    font-size: 56px;
    margin-bottom: 24px;
    display: inline-block;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    filter: grayscale(1);
}

.service-card:hover .service-icon {
    transform: scale(1.2) rotate(10deg);
    filter: grayscale(0);
}

.service-card h3 {
    font-size: 26px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.service-card p {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    font-size: 16px;
    font-weight: 300;
}

/* Commitments Section - Alternating Layout */
.commitments-section {
    padding: 100px 40px;
    background: radial-gradient(ellipse at center, #1a1a1a 0%, #000000 60%);
}

.commitment-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-bottom: 120px;
    opacity: 0;
}

.commitment-item:last-child {
    margin-bottom: 0;
}

.commitment-item:nth-child(even) {
    direction: rtl;
}

.commitment-item:nth-child(even) > * {
    direction: ltr;
}

.commitment-visual {
    width: 100%;
    height: 400px;
    border-radius: 24px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 120px;
    transition: transform 0.5s ease;
}

.commitment-item:hover .commitment-visual {
    transform: scale(1.05);
}

.commitment-content h3 {
    font-size: 42px;
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff 0%, #808080 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.commitment-content p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
    font-weight: 300;
}

/* Infrastructure Section - Timeline Layout */
.infrastructure-section {
    padding: 100px 40px;
}

.infrastructure-timeline {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
}

.infrastructure-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: translateX(-50%);
}

.timeline-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 100px;
    position: relative;
    opacity: 0;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 24px;
    height: 24px;
    background: var(--white);
    border-radius: 50%;
    border: 4px solid var(--black);
    z-index: 2;
}

.timeline-item:nth-child(odd) .timeline-content {
    grid-column: 1;
    text-align: right;
    padding-right: 40px;
}

.timeline-item:nth-child(even) .timeline-content {
    grid-column: 2;
    text-align: left;
    padding-left: 40px;
}

.timeline-item:nth-child(odd) .timeline-visual {
    grid-column: 2;
}

.timeline-item:nth-child(even) .timeline-visual {
    grid-column: 1;
    grid-row: 1;
}

.timeline-visual {
    padding: 40px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    transition: all 0.5s ease;
}

.timeline-item:hover .timeline-visual {
    transform: scale(1.1);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
}

.timeline-content h3 {
    font-size: 32px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.timeline-content p {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    font-size: 16px;
    font-weight: 300;
}


/* CTA Section */
.cta-section {
    padding: 100px 40px;
    background: var(--black);
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.cta-section h2 {
    font-size: 56px;
    font-weight: 900;
    background: linear-gradient(135deg, #ffffff 0%, #808080 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 40px;
    letter-spacing: -2px;
}

.btn-cta {
    display: inline-block;
    text-decoration: none;
    padding: 18px 48px;
    background: linear-gradient(135deg, #ffffff 0%, #d0d0d0 100%);
    color: var(--black);
    border: none;
    border-radius: 16px;
    font-size: 16px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.6s ease;
}

.btn-cta:hover::before {
    left: 100%;
}

.btn-cta:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 16px 48px rgba(255, 255, 255, 0.4);
}

.btn-cta:active {
    transform: translateY(-2px) scale(1.02);
}

/* Footer */
.footer {
    background: var(--black);
    color: var(--white);
    padding: 100px 40px 48px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 60px;
    margin-bottom: 60px;
}

.footer-column h4 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--white);
}

.footer-column p {
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.7;
    font-weight: 300;
}

.footer-link {
    display: block;
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    margin-bottom: 16px;
    transition: all 0.3s ease;
    font-weight: 300;
    position: relative;
    width: fit-content;
}

.footer-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--white);
    transition: width 0.3s ease;
}

.footer-link:hover {
    color: var(--white);
    transform: translateX(4px);
}

.footer-link:hover::after {
    width: 100%;
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.4);
    font-weight: 300;
}

@media (max-width: 968px) {
    .commitment-item,
    .timeline-item {
        grid-template-columns: 1fr !important;
        gap: 40px;
    }

    .commitment-item:nth-child(even) {
        direction: ltr;
    }

    .commitment-visual {
        height: 300px;
    }

    .infrastructure-timeline::before {
        left: 0;
    }

    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        grid-column: 1;
        text-align: left;
        padding-left: 40px;
        padding-right: 0;
    }

    .timeline-item:nth-child(odd) .timeline-visual,
    .timeline-item:nth-child(even) .timeline-visual {
        grid-column: 1;
        grid-row: 2;
    }

    .timeline-marker {
        left: 0;
        transform: translate(-50%, -50%);
    }
}

@media (max-width: 768px) {
    header {
        padding: 20px 24px;
    }

    .logo {
        font-size: 24px;
    }

    .hero-section {
        padding: 80px 24px;
    }

    .hero-section h1 {
        font-size: 38px;
    }

    .hero-section p {
        font-size: 16px;
    }

    .services-section,
    .commitments-section,
    .infrastructure-section {
        padding: 80px 24px;
    }

    .section-header h2 {
        font-size: 38px;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .service-card {
        padding: 32px 24px;
    }

    .commitment-item {
        margin-bottom: 60px;
    }

    .commitment-content h3 {
        font-size: 32px;
    }

    .timeline-content h3 {
        font-size: 26px;
    }

    .cta-section {
        padding: 80px 24px;
    }

    .cta-section h2 {
        font-size: 38px;
    }

    .btn-cta {
        padding: 16px 32px;
        font-size: 14px;
    }

    .container {
        padding: 0 24px;
    }

    .footer {
        padding: 80px 24px 48px;
    }

    .footer-grid {
        gap: 40px;
    }

    .language-switcher {
        gap: 4px;
    }

    .lang-btn {
        padding: 6px 12px;
        font-size: 11px;
    }

    .space {
        padding: 6px 12px;
        font-size: 12px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}